The 77645 Collimating Beam Probe has a low F/# compound glass lens with an 11 mm effective focal length. It collimates the highly divergent output from glass bundles, and transmits over their useful spectral range.


77645准直光束探头具有低F/#的复合玻璃透镜,有效焦距为11毫米。它将玻璃束高度发散的输出对准,并在有用的光谱范围内传输。